<?php
/**
 * User: lie
 * Date: 2020/11/6 17:22
 * description:
 */
    switch ($_GET['link']){
        case '数据库';
        require_once('conn.php');
        break;
        case '主页';
        require_once('069.html');
        break;
    }
    var_dump($mysqli);

